OpenAI API pricing calculator
GPT-5.4 Nano Pricing Calculator: Input and Output Token Costs
Estimate prompt, response, cached input, and volume costs for GPT-5.4 Nano. Pricing verified 2026-06-25 from the provider source.
Quick estimate
No API key needed. Pick a model, paste your question, choose the answer length, and get a close cost estimate.
3. How long will the AI answer be?
Your estimate will appear here.
Paste a prompt, choose an answer length, and calculate.
Pricing table
Input: $0.2 per 1M tokens
Output: $1.25 per 1M tokens
Cached input: $0.02 per 1M tokens
Context window: Provider-specific tokens
Example prompt costs
A 2,000 token prompt and 1,000 token answer costs about $0.001650 before tool add-ons.
Lowest-cost OpenAI text seed.
How much does GPT-5.4 Nano cost per 1M input tokens?
GPT-5.4 Nano is seeded at $0.2 per 1M input tokens for the standard tier.
How much does GPT-5.4 Nano cost per 1M output tokens?
GPT-5.4 Nano is seeded at $1.25 per 1M output tokens.
Does GPT-5.4 Nano support cached input pricing?
Yes. The cached input seed price is $0.02 per 1M tokens.